ACPI / PMIC: Add opregion driver for Intel BXT WhiskeyCove PMIC

This patch adds operation region driver for Intel BXT WhiskeyCove
PMIC. The register mapping is done as per the BXT WC data sheet.

Signed-off-by: Ajay Thomas <ajay.thomas.david.rajamanickam@intel.com>
Signed-off-by: Bin Gao <bin.gao@intel.com>
Reviewed-by: Aaron Lu <aaron.lu@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
diff --git a/drivers/acpi/Kconfig b/drivers/acpi/Kconfig
index b7e2e77..47cb6f6 100644
--- a/drivers/acpi/Kconfig
+++ b/drivers/acpi/Kconfig
@@ -519,6 +519,12 @@
 	help
 	  This config adds ACPI operation region support for XPower AXP288 PMIC.
 
+config BXT_WC_PMIC_OPREGION
+	bool "ACPI operation region support for BXT WhiskeyCove PMIC"
+	depends on INTEL_SOC_PMIC
+	help
+	  This config adds ACPI operation region support for BXT WhiskeyCove PMIC.
+
 endif
 
 endif	# ACPI